I have the following problems with a newly installed 177.80 graphics driver:

1. Icons fade, lose their captions or become invisible on the desktop.
2. The desktop is constantly trying to refresh itself (but it fails).
3. The mouse is unresponsive - the cursor remains fixed on the desktop.
I have to log out with Alt-Ctrl-Del, Logout, Return.

We upgraded the driver from 1.0-6628 when the computer failed to reach run level 5.
Actually, it turned out that the problem was a full root partition. Clearing some space
allowed us to reach the graphical desktop, but by then, the driver had been updated and
we couldn't roll back. See the log-file attached. Does 1.0-6628 still exist ? And, how to proceed safely ?